145715375 has 16 divisors (see below), whose sum is σ = 195843648. Its totient is φ = 107604000.

The previous prime is 145715357. The next prime is 145715377. The reversal of 145715375 is 573517541.

It is not a de Polignac number, because 145715375 - 2¹⁴ = 145698991 is a prime.

It is a super-2 number, since 2×145715375² = 42465941022781250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145715377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43211 + ... + 46460.

It is an arithmetic number, because the mean of its divisors is an integer number (12240228).

Almost surely, 2^145715375 is an apocalyptic number.

145715375 is a deficient number, since it is larger than the sum of its proper divisors (50128273).

145715375 is an equidigital number, since it uses as much as digits as its factorization.

145715375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89699 (or 89689 counting only the distinct ones).

The product of its digits is 73500, while the sum is 38.

The square root of 145715375 is about 12071.2623614931. The cubic root of 145715375 is about 526.2213439522.

The spelling of 145715375 in words is "one hundred forty-five million, seven hundred fifteen thousand, three hundred seventy-five".